Epitaxial Synthesis of Blue Phosphorene

Abstract

Phosphorene is a new two-dimensional material composed of a single or few atomic layers of black phosphorus. Phosphorene has both an intrinsic tunable direct band gap and high carrier mobility values, which make it suitable for a large variety of optical and electronic devices. However, the synthesis of single-layer phosphorene is a major challenge. The standard procedure to obtain phosphorene is by exfoliation. More recently, the epitaxial growth of single-layer phosphorene on Au(111) has been investigated by molecular beam epitaxy and the obtained structure has been described as a blue-phosphorene sheet. In the present study, large areas of high-quality monolayer phosphorene, with a band gap value at least equal to 0.8 eV, have been synthesized on Au(111). Our experimental investigations, coupled with DFT calculations, give evidence of two distinct phases of blue phosphorene on Au(111), instead of one as previously reported, and their atomic structures have been determined.

This paper reports on the epitaxial synthesis of blue phosphorene

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Cited by in corpus (8)

• Spin-orbit coupling in elemental two-dimensional materials
• Second Order Topological Insulator State in Hexagonal Lattices and its Abundant Material Candidates
• Valley-engineering mobilities in two-dimensional materials
• Silicene nanoribbons on an insulating thin film
• Topological edge and corner states and fractional corner charges in blue phosphorene
• Phononic Stiefel-Whitney topology with corner vibrational modes in two-dimensional Xenes and ligand-functionalized derivatives
• Spatially indirect excitons in black and blue phosphorene double layers
• One-dimensional electronic structure of phosphorene chains